Flights for the airplane with tail number N39423 These are not all the flights for this airplane, just the ones that have flown in and out of SFO since we've been counting. See all the airports this plane has visited for those flights or all the airplanes we've logged so far.

UA1783 (SFO-AUS)
This United Airlines flight between San Francisco International Airport and Austin-Bergstrom International Airport, on January 10, 2023, was operated by another airline. It departed from gate E13. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA1783.
UA1997 (EUG-SFO)
This United Airlines flight between Eugene Airport-Mahlon Sweet Field and San Francisco International Airport, on January 10, 2023, was operated by another airline. It arrived at gate E13. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA1997.
UA571 (SFO-EUG)
This United Airlines flight between San Francisco International Airport and Eugene Airport-Mahlon Sweet Field, on January 09, 2023, was operated by another airline. It departed from gate F3. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA571.
UA2385 (IAH-SFO)
This United Airlines flight between George Bush Intercontinental Airport and San Francisco International Airport, on January 09, 2023, was operated by another airline. It arrived at gate F3. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA2385.
UA1942 (SFO-PDX)
This United Airlines flight between San Francisco International Airport and Portland International Airport, on December 31, 2022, was operated by another airline. It departed from gate F20. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA1942.
UA2678 (ORD-SFO)
This United Airlines flight between Chicago O'Hare International Airport and San Francisco International Airport, on December 31, 2022, was operated by another airline. It arrived at gate E13. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA2678.
UA729 (SFO-ORD)
This United Airlines flight between San Francisco International Airport and Chicago O'Hare International Airport, on December 30, 2022, was operated by another airline. It departed from gate F16. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA729.
UA1082 (PDX-SFO)
This United Airlines flight between Portland International Airport and San Francisco International Airport, on December 30, 2022, was operated by another airline. It arrived at gate F16. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA1082.
UA1942 (SFO-PDX)
This United Airlines flight between San Francisco International Airport and Portland International Airport, on December 30, 2022, was operated by another airline. It departed from gate E7. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA1942.
UA500 (IND-SFO)
This United Airlines flight between Indianapolis International Airport and San Francisco International Airport, on December 30, 2022, was operated by another airline. It arrived at gate E7. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA500.
UA1893 (SFO-IND)
This United Airlines flight between San Francisco International Airport and Indianapolis International Airport, on December 29, 2022, was operated by another airline. It departed from gate E4. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA1893.
UA2674 (DEN-SFO)
This United Airlines flight between Denver International Airport and San Francisco International Airport, on December 28, 2022, was operated by another airline. It arrived at gate E5. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA2674.